For example for a rental with $2700/month rent with folling scenarios, how much mimum income would be considered adequate?

They also need adequate RE experience, this is not a beginner program. 

A 15-month measuring stick isn't adequate.

Every marketing strategy has to be adequately design for you, your time and what you like to do.If you don't know start with one and move to NM the next one.

I knew I was adequately insured and had zero risk of financial consequences.  

Some insurance companies offer policies specifically designed for owner-occupied multifamily properties, so it’s worth asking about that option.The key is ensuring both your personal residence and the rental unit are adequately covered.

I bring deals already put together so lenders just need to process.Each time I begged them to be honest had adequate time to have gotten loans from other lenders.They have no clue

As for whether or not you were able to get adequate notice in your particular case, or what steps you ought to take in this particular case, those are things that can only be discussed by a licensed attorney in your State.

On here just last week, someone told everyone that all tenants hate their landlords so there was really no need to provide any level of adequate or decent levels of respect or service.

I hope to leave paid off properties behind for my family, but performing rentals with adequate reserves are a part of my retirement strategy along with other income sources.